Yes, The Candles Burning Blue is definitely a goth band because most of their albums belong to the Gothic Rock genre, which is a core subgenre of goth music. Albums like Pearls Given To The Swine are examples of their goth sound.
The Candles Burning Blue is located in Finland, active in 2001 — present. You can find more information about The Candles Burning Blue on their GothDB band page.
Want to check if another band is goth? Search other bands.